How to manage red meat honey pomelo in June?

How to manage red meat pomelo in June? Please guide June is the concentrated period of plum flood season, precipitation is more, intensity is large and relatively concentrated, easy to cause flood disaster. At the same time, it is also an important time for red pomelo management. The management methods can refer to the following: (1) Continue to maintain fruit The second physiological fruit dropping period (also known as June fruit dropping), which begins in the middle and late May, differs from the first physiological fruit dropping period in that fruit dropping does not have fruit stalks. For red-flesh pomelo trees, the fruit size is not obvious, and the small fruit is many. In order to reduce the fruit drop, it is necessary to strengthen the topdressing outside the root, spray 0.2% urea plus 0.3% potassium dihydrogen phosphate or nutrient solution fertilizer every 10 days, and add 0.2% borax spray in mountain red-flesh pomelo orchard. Young fruit trees, easy to produce fruit drop strong trees, every 7 to 10 days wipe a summer shoot, in order to protect the fruit. In view of the intense competition for nutrients in shoot and fruit, which is easy to aggravate fruit drop, the strong trees that have been girdled (2~3 mm) should be inspected again before the first ten days of June, and the healing tissue should be wiped off again for the girdling mouth that has healed ahead of time. (2) Tree management For young trees, when the summer shoots are more than 25~30 cm, they are picked, branches and shoots are promoted, and the crown is enlarged. For mature fruiting trees, summer shoot sprouting and growth should be controlled by fertilizer and water control and bud wiping. Senescent trees, heavy cut trees, tall trees and other bare branches, as the temperature rises, strong light, easy to occur branches burn, should be painted white. The formula of the white paint is 500g of quicklime, 15g of sulfur powder, 10g of salt and 3 - 4kg of clear water, and the mixture is evenly mixed. At the end of June, after the second physiological fruit drop, coarse thinning can be started. It is mainly aimed at the plants with many fruits. Before thinning fruit, make a rough judgment on the whole garden first. Starting from the red-fleshed pomelo trees with too many fruits, carry out coarse fruit thinning according to the leaf-fruit ratio of 15:1, thinning disease and insect fruits, abnormal fruits, mechanical damage fruits, small fruits and over-dense fruits. During the rainy season, weeds are allowed to grow, ditches are dredged to prevent ponding. (3) Disease and pest control At this time, high temperature and humidity, red flesh pomelo rust tick entered the rapid proliferation stage, black spot disease in early June. Control should be initiated if leaves or fruits have 1 to 2 rust ticks per field of view under 10 x magnification, or if the back of spring leaves is initially damaged. 25%~50% fenbutin 1500~2000 times solution, or 20% carbosulfan 1500 times solution, etc., can be used to control rust ticks and black spots by adding 600~800 times solution of mancozeb. At the end of June and the first ten days of July, another black spot disease was prevented and treated. Longicorn can catch adults, cut eggs and larvae, when the hook can not produce larvae, with dipped in 80% dichlorvos or 40% dimethoate emulsifiable solution of cotton plug hole, external seal sticky mud, to achieve the purpose of fumigation death. For the control of scale insects, 200 times of 99% oil emulsion and 1000 times of 25% buprofezin were used in the first and second generation incubation period. Click for more grapefruit growing techniques Click for more fruit growing techniques